fix #321

[blockloop]

I also removed some of your custom implementations of stdlib strings functions for consistency

[codecov]

Codecov Report

Merging #322 (b7a1047) into master (7916fa6) will decrease coverage by 0.33%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master     #322      +/-   ##
==========================================
- Coverage   80.91%   80.57%   -0.34%     
==========================================
  Files           3        3              
  Lines         351      345       -6     
==========================================
- Hits          284      278       -6     
  Misses         43       43              
  Partials       24       24              

Impacted Files	Coverage Δ
s3_file.go	81.48% <66.66%> (ø)
s3_fs.go	78.52% <100.00%> (-0.77%)	⬇️

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[fclairamb]

Ok I'm going to force it. I guess that's what happens when we re-implement standard library functions 😬 .

[fclairamb]

Thank you very much @blockloop, sorry for the very late answer. I need to properly setup my github notifications.